Jacob ullrich



(No Model.)

J. ULLBIGH. STYLOGRAPHIU FOUNTAIN PEN.

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' UNITED STATES PATENT OFFICE.

JACOB ULLRIGH, OF HOBOKEN, NEW JERSEY.

STYLOGRAPHIC FOUNTAIN-PEN.

SPECIFICATION forming part of Letters Patent No. 262,629, dated August15, 1882.

Application filed November 18, 1881. (No model.)

T 0 all whom it may concern:

Be it known that I, JACOB ULLRICH, of Hoboken, county of Hudson, andState of New Jersey, have invented certain new and useful Improvementsin Stylographic Fountain-Pens, of which the following is aspecification. j

This invention relates to improvements in the construction ofstylographic fountain-pens of that class in which the spindle of thegravity-valve extends into the air-tube of the fountain, theimprovements being designed with a view to prevent the settling of theink in the air-tube and the consequent sticking of the spindle of thevalve. When the air-tube is thus closed by the settling of the ink theadmission of air to the ink in the fountain is prevented,'andconsequently the regular flow of ink and the efficient working of thepen impaired.

My invention consists in arranging in connection with the air-tube ofthe fountain-pen an enlarged removable air-ch am her, either midway orat the lower end thereof, whereby the air-supply is not interrupted,even if the ink should run in. I

In the accompanyingdrawin gs,Figure1represents a vertical centralsection of my improved stylographic fountain-pen, and Figs. 2 and 3 aredetail sectionsof the air-tube of the same with my improved air-chamber.

Similar letters of rcft-rence indicate corresponding parts.

A in the drawings represents the air-tube of a stylographic fountain-penof that class in which a gravity-valve, B, is guided by its spindle inthe lower end of the air-tube.

O is the fountain or barrel, and D the pointsection, all being arrangedin the customary manner in this class of pens. The air-tube A isprovided, either at its lower end or at a point intermediately betweenthe lower and upper ends thereof, with an enlarged removable airchamber,E, which is formed of a sleeve, a, that connects the two sections of theair-tube, as shown in Fig. 2, or which is attached to the lower end ofthe air-tube, as shown in Fig. 3. In one case the end of the uppersect-ion ofthe air-tube A is cut off square at the end, while the end ofthe other section of the air-tube within the sleeve on is tapered out,so as to facilitate the running back of the ink if any should haveentered into the air-chamber. The end of the air-tube in Fig. 3 is madetapering for the same purpose.

By the arrangement of the air-chamber in connection with the air-tube ofthe fountainpen one of the main ohjeetionsto the use of the pens withgravity-valves is overcome, and a regular supply ot'air, andconsequently an even flow of ink to the point, secured in a reliablemanner without any danger of clogging the valve or interrupting theworking of the pen.

Having thus described my invention, Iclaim as new and desire to secureby Letters Patent- As an improvement in fountain-pens ofthat classhaving gravity-valves with spindles extending into the air-tubes, anair-tube provided with a removable air-chamber having a cross-section oflarger area than that of the cross-section of the air-tube,substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

JACOB ULLRICH.

Witnesses:

PAUL GoEPEL, OAEL KARP.

